GB456915A - Means for lighting electric gas discharge tubes - Google Patents
Means for lighting electric gas discharge tubesInfo
- Publication number
- GB456915A GB456915A GB1731935A GB1731935A GB456915A GB 456915 A GB456915 A GB 456915A GB 1731935 A GB1731935 A GB 1731935A GB 1731935 A GB1731935 A GB 1731935A GB 456915 A GB456915 A GB 456915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glow
- alternately
- earth
- electrodes
- earthed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency AC, or with separate oscillator frequency
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
456,915. Supply systems for discharge lamps. IBUKA, M., 32, Kitami Seijo, Kinuta-mura, Kitatama, Tokio. June 15, 1935, No. 17319. [Class 38 (iv)] [See also Groups XL and XVIII] Discharge lamps for beacons, advertising, &c. are supplied from an oscillator of periodicallyvarying frequency above audio frequencies to produce periodic growth and shortening of the glow discharge along the tubular lamp and means are provided to reduce the potential relatively to earth of each electrode alternately so that the glow spreads from alternate ends of the tube. The oscillator 7 may be connected to a remote lamp 18 through a step-down transformer 14, an earthed feeder-line 17 and a step-up transformer 16 and its frequency is periodically controlled by a motor-driven condenser 11. Unless the two electrodes of the lamp are at the same potential relatively to earth, the glow travels from one electrode to the other. The glow is made to spread alternately from opposite end by connecting the electrodes to plates 21, 22 separated by an earthed plate 23 moved alternately towards the plates 21, 22. In modifications, the electrodes are connected to a potentiometer with an earthed movable tapping or to two variable condensers alternately connected to earth. Dimensions of a tube supplied at a frequency of about 120 kilocycles are specified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1731935A GB456915A (en) | 1935-06-15 | 1935-06-15 | Means for lighting electric gas discharge tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1731935A GB456915A (en) | 1935-06-15 | 1935-06-15 | Means for lighting electric gas discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB456915A true GB456915A (en) | 1936-11-18 |
Family
ID=10093086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1731935A Expired GB456915A (en) | 1935-06-15 | 1935-06-15 | Means for lighting electric gas discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB456915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1051975B (en) * | 1956-03-16 | 1959-03-05 | Triflux Soc | Arrangement for progressive end and for the power supply of light tubes |
-
1935
- 1935-06-15 GB GB1731935A patent/GB456915A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1051975B (en) * | 1956-03-16 | 1959-03-05 | Triflux Soc | Arrangement for progressive end and for the power supply of light tubes |
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